Modeling the skin pattern of fishes

Autor(es)

Barrio‚ R.A. ; Baker‚ R.E. ; Vaughan Jr‚ B. ; Tribuzy‚ K. ; de Carvalho‚ M.R. ; Bassanezi‚ R. ; Maini‚ P.K.

• Tipo de documento: Artigo Científico
• Fonte: Physical Review E; v. 79, n. 3, p. 031908, 2009.

Resumo

Complicated patterns showing various spatial scales have been obtained in the past by coupling Turing systems in such a way that the scales of the independent systems resonate. This produces superimposed patterns with different length scales. Here we propose a model consisting of two identical reaction-diffusion systems coupled together in such a way that one of them produces a simple Turing pattern of spots or stripes, and the other traveling wave fronts that eventually become stationary. The basic idea is to assume that one of the systems becomes fixed after some time and serves as a source of morphogens for the other system. This mechanism produces patterns very similar to the pigmentation patterns observed in different species of stingrays and other fishes. The biological mechanisms that support the realization of this model are discussed. (AU)

• Processo FAPESP: 02/06459-0 - Sistemática filogenética, evolução e classificação de raias viventes e fósseis, com uma análise da biologia histórica das raias de água doce da família Potamotrygonidae (Chondrichthyes: Batoidea)
• Beneficiário: Marcelo Rodrigues de Carvalho
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores